Advertising device.



Patented July 20, 1915.

I. U. BARR.

ADVERTISING DEVICE.

APPLlcATIoN FILED MAI/11.1914.

JOHN U. BARR, OF NEW YORK, N.

Y., assienoaor cnn-HALF ro ennemis itosn, or

YoniarLY.- a Y ADVERTISING DEVICE.

intensa.

Specieation of Letters Patent.

Patentes .any ao, reis.

Application filed. may 11., 1914. Serial No. 837,643.

To all whom t may concern.'

Be it known that I, JOHN U. BARR, a citizen of the United States, residing at New York city, in th'e county and State of New York, have invented certain new and useful Improvements in Advertising Devices, of which the following is a clear, full, and exact description.

This invention relates to improvements in advertising devices, and in its more intense aspect to improvements in the motor mechanism arranged to impart intermittent movement to a changeable exhibitor.

One of the objects of the present invention is to provide a simple and practical mechanism of the above' character which will be reliable and eliicient in use and operation.

A .further object is to provide a mechanism of the above character adapted to 1ntermittently move a changeable exhibitor rapidly and hold the same .in its changed position against vibration or rebounding.

Other objects will be in part obvious from the annexed drawings andin part indicated in connection therewith by the following analysis of this invention.

This invention accordingly consists in the features of construction, combination of parts and in the unique relations of the members and in the relative proportioning and ydisposition thereof, all as more completely outlined herein.

'.To enable others skilled in the art so fully to comprehend the underlying features thereof that they may embody the vsaine vby the numerous modifications in structure and relation contemplated by this invention, drawings depicting a preferred form have been annexed as a part of this disclosure, and in such drawings, like characters of reference denote corresponding parts throughout all the views, in which- Figure 1 is a rear view of suchparts of a changeable exhibitor or advertising device as are necessary' to illustrate the present 1nvention; Fig. 2 is a sectional plan 'view with certain parts of the operating mechamsm removed.

In order that a clear perceptionmay be had of the several objects sought to be obtained by the present invention it may be briefly stated that theA present device is particularly adapted for use in such devices as', are adapted to cast an image or shadow upon the sidewalk or screen of certain advertising or printed matter carriedupon the face of a movable transparent member behind which may be positioned a source of light, reflectors and lenses as may be necessary to properly present the advertising matter at the place or point desired. This transparent member 1s intermittently moved'at'regular intermittently moving the transparent mem-I es f ber, and is fully disclosed in Fig. 1 of the drawings.

In Fig. 1 a suitable support or frame 20 is-provided on its rear face with ordinary clockwork movement B, and a spring vmotor C. The clock work B is adapted to actuate or move an hour hand 21, and a minute hand 22, through the medium of gearing 23 adapted to mesh with suitable gearing 25 carrying the hands of the clock. In front of the hands is placed a transparent disk 27 to which are applied the hour indications-from one to twelve, the gearing 25 being suitably protected by an inclosingcasing 28.

'Ihe advertising matter which is to be cast in shadow form upon the sidewalk or other vsuitable place is indicated by the character A shown in dotted lines in one of the sections of a relatively large rotatable plate 29. It is of course to be understood that each sectionv of this plate is .provided with other advertising matter. The plate is clamped or secured in any desired manner to a, central shaft 30 adapted to vbe intermittently rotated by the motor C in such a manner that each section of the plate 29 is caused to aline with the face -or dial 27 of the clock in succession and remain stationary in front o f said dial for a predetermined length of time. While the plates are at rest before the dial the advertising matter thereon will appear on `the face of the shadow clock and at the end of that time'the plate will rotate to present a new section having dili'erent printed matter thereon.

Associatedwiththe clock mechanismB is a balance wheel -mechanism of the usual character indicatedy at D, .beating the seconds in order to control the operation or movement of the plate\29 across the face'of balance wheel mechanism carries a disk 41 rality of pins or studs 42, which control the operation of the motor mechanism C.

spring 43 furnishes a source of power for rotating the shaft 30 through intermediate gearing' 44', 45, 46 and 47 .f The intermittent rotation of this shaft 30 is controlled by means of a lever 48 carried by a hub 49 upon a driven shaft 50 of the motor mechanism C. As the lever 48 extends to the disk 41 of the clock mechanism it is held against move-l ment by means of pins 42 with which it engages as long as one of these pins 42 remains in contact with said lever. As soon hoW'- ever as the pin 42 clears the end .of the lever the spring 42 of the motor will act to turn the gears and shaft 5,0vat relatively high speed through a complete revolution. Durlng 42 will have moved into the path of rotation of the lever 48 and arrest the same upon completion of one rotation. The parts are so proportioned and arranged that one rotation of this lever 48 will cause the disk 49 to rotate a suiicient distance to move the next section into operative position. The periods of rest will be of predetermined length of time governed by the number of pins 42, and when four pins are used, as shown herein, these periods of rest will be substantially fifteen seconds, as the disk 41 is adapted torotate once a minute. ln eX- hibitors of this character the motor mechanism C for rotating the exhibitor vhas to be properly proportioned to obtain the desired result, and if the motor is too strong for the arm 48, at the end of its rotation and on engagement with one of the pins 42 there will be a tendency to bend the arm or pos-` sibly break the intervening mechanism. If a weaker motor is used its strength will hardly be suiiiicient to hold the arm 48 against re-bounding which would cause a consequent vibration of the advertising matter presented upon the dial 27. In order to prevent this re-bounding or oscillation there is provided a ratchet 5l and a pawl 52, associated with a shaft 30 which pre vents the arm 48 from re-bounding on engaging one of the pins 42. The shaft 50 is also provided with a ratchet 53 and coperating pawl 54 to prevent actuation of the `motor while changing plates 29.l A brake mechanism 55 1s also provided which can be moved into the path of the rotating arm 48 and when in such position as shown by dotted lines will cause the arm 48 to rest and stop further operation 'of the motor. This mechanism is particularly desirable when all of the advertising matter is not desired.

this rotation of the shaft 50 another pin that others can by applying current knowledge readily adapt 1t for various applications without omitting certain features that,

from the standpoint of thevprior art, fairly constitute essential characteristics of the generic or specific aspects of this invention, and therefore such adaptations should and are intended to be comprehended within the meaning and range of equivalency of the following claims.

I claim as my invention:

1. In' a device of the character described, in combination, a main driven shaft adapted to carry a changeable exhibitor, an arm mounted on said shaft, a motor for turning said shaft at relatively high speed to rotate said arm, clock mechanism independently associated therewith, intermittent stop and release mechanism driven thereby and positioned in the path of said arm whereby said arm is momentarily arrested at the end of each revolution, and a pawl and ratchet mechanism associated with said driven shaft adapted to prevent rebounding of said-arm and oscillation of said exhibitor as said arm engages said intermittent stop mechanism.

2. In a device of the character described, in combination, a main driven shaft adapted to carry a 'changeable exhibitor, an arm rotatable with said shaft, a motor for turning said shaft at relatively high speed to rotate said arm, clock mechanism independently associated therewith, intermittent stop and release mechanism driven thereby and positioned in the path of said arm whereby JOHN U. BARR.

' Witnesses:

Menen DITrENnonFnR, ROBERT RICHTER. 

